http://www.indie4k.com/archives/7 A blog about the technical, financial and creative aspects of HD and Ultra-HD independant filmmaking. Tue, 06 Jan 2009 12:53:30 +0000 http://wordpress.org/?v=2.5.1 http://www.indie4k.com/archives/7#comment-95 Indie4K: Independent digital cinema beyond HD. » Blog Archive » How to store data #2: eSATA RAID Fri, 02 Mar 2007 01:38:57 +0000 http://www.indie4k.com/archives/7#comment-95 <p>[...] If we’re building a 2 TB array out of 500 GB drives, why do we want five of them, rather than four? Well, if you create a striped RAID across four drives, and any one of them fails, your data is toast. Even if you leave them as separate volumes, if any one of them fails, 1/4 of your data is toast. And, of course, you’re four times as likely to have a failure with four drives as with one. Sure, hopefully you’ve got everything backed up, but you could still lose a fair bit of work. [...]</p> [...] If we’re building a 2 TB array out of 500 GB drives, why do we want five of them, rather than four? Well, if you create a striped RAID across four drives, and any one of them fails, your data is toast. Even if you leave them as separate volumes, if any one of them fails, 1/4 of your data is toast. And, of course, you’re four times as likely to have a failure with four drives as with one. Sure, hopefully you’ve got everything backed up, but you could still lose a fair bit of work. [...]

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